CN1806274A - Driving method of deplay device having main display and sub display - Google Patents

Driving method of deplay device having main display and sub display Download PDF

Info

Publication number
CN1806274A
CN1806274A CNA2005800005324A CN200580000532A CN1806274A CN 1806274 A CN1806274 A CN 1806274A CN A2005800005324 A CNA2005800005324 A CN A2005800005324A CN 200580000532 A CN200580000532 A CN 200580000532A CN 1806274 A CN1806274 A CN 1806274A
Authority
CN
China
Prior art keywords
display panel
display
signal voltage
sweep trace
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2005800005324A
Other languages
Chinese (zh)
Other versions
CN1806274B (en
Inventor
神尾知巳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Publication of CN1806274A publication Critical patent/CN1806274A/en
Application granted granted Critical
Publication of CN1806274B publication Critical patent/CN1806274B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3614—Control of polarity reversal in general
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3666—Control of matrices with row and column drivers using an active matrix with the matrix divided into sections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/16—Details of telephonic subscriber devices including more than one display unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

Two display panels (10m, 10s) each have a plurality of scanning lines and a plurality of signal lines with display pixels situated near each intersection point of each scanning line and signal line. A common electrode is situated in common with each of the display pixels and the display panels have a predetermined numbers of the scanning lines respectively. While repeating alternately between each of the display panels (10m, 10s) in a display period within a one frame period, an operation sequentially selects a number of the scanning lines of each of these display panel in turn in each display period corresponding to the ratio of the numbers of the scanning lines in each of these display panels at predetermined scan timing. Reversal control of the signal polarity of each common signal voltage is applied to the common electrode of each display panel (10m, 10s) in order that reversal drive of each display panel is performed for every scanning line and every frame period.

Description

Driving method with display device of basic display unit and sub-display
The application based on and require the right of priority of the No.2004-142201 of Japanese patent application formerly of on May 12nd, 2004 application, at this in the lump as a reference in conjunction with its whole contents.
Technical field
The present invention relates to a kind of display device and a kind of electronic equipment of display device and drive controlling method of display device of comprising.More specifically, the present invention relates to a kind of electronic equipment that comprises display device, for example cell phone (cell phone), portable phone etc., and the related display apparatus that comprises two or more display panels, and drive controlling method.
Background technology
Over past ten years, for example the prosperity of the digital information apparatus of personal computer, digital camera, cell phone, DVD burner etc. is beyond example.In these digital information apparatus, provide display device to be used to show various image informations, current mode of operation etc.
For example, present most cell phone develops into the shell structure (flip-shell) of collapsible type.In addition, a plurality of this main flow cellular handset comprise and lean against two display panels that are installed in phone top privately: the relatively large basic display unit of (housing of inside surface) forward that forms in main operation function surface one side and the relative less sub-display of (housing of outside surface) outwardly.
At this, explanation is comprised the display device of traditional prior art of two display panels.
Fig. 7 shows the summary arrangement plan of example of the display device of the traditional display technique that comprises two display panels.
Shown in Fig. 7 and similar above-mentioned cell phone, this configuration comprises relatively large basic display unit and relative less sub-display.In addition, this configuration shows two display panels, and wherein display element is arranged according to two-dimensional array and is applied to and the corresponding display panels of driven with active matrix method.
For example the display device of traditional prior art as shown in Figure 7 has a kind of configuration, comprising: at least two kinds of display panel PNL1, PNL2 are arranged in parallel with the sweep trace of different numbers; Gate drivers GDR (scanner driver) is applied to sweep signal each scanline groups SLm, SLs of arranging successively in the line direction of each display panel PNL1, PNL2; Source drive SDR (data driver) is applied to the data line group DLm that arranges with shows signal (for example with the corresponding shows signal voltage of luminance signal) in the column direction of display panel PNL1; And common electric voltage generation part COM1, COM2 (common electrode drive device part), common signal voltage Vcom1, Vcom2 are applied to the public electrode (having omitted among the figure) that is arranged among each display panel PNL1, PNL2.
At this, for example, the panel size difference of two display panel PNL1, PNL2.In this configuration, among the data line group DLm that the Source drive SDR from display panel PNL1 extends, the part of data line group DLs is passed display panel PNL1 and is led to display panel PNL2.Basically, in this is provided with by two display panel PNL1, PNL2 shared data line group DLs.For example, an example has been shown among Fig. 7.In display panel PNL1, the number of sweep trace be 240 and the number of data line be 528 (176 * 3 (RGB)).In display panel PNL2, the number of sweep trace be 64 and the number of data line be 264 (88 * RGB).Among the data line group DL1～DL528 that extends from Source drive SDR, data line group DL1～DL264 has the configuration that two display panel PNL1, PNL2 share.
In addition, in display device shown in Figure 7, even for example in the configuration in the situation that shows two different panels sizes, display device also can comprise two display panels of identical faces board size.
In addition, as shown in Figure 7, gate drivers GDR has the single driver chip structure, yet can also have and the corresponding different driving device of each scanline groups SLm, SLs chip structure that is arranged among display panel PNL1, the PNL2.Particularly, this structure must be applied to all sweep traces via the transfer signal generation component that is arranged among the gate drivers GDR with the sequential scanning signal in a plurality of stages.
In addition, common electric voltage produces the public electrode that part COM1, COM2 are applied to common signal voltage Vcom1, Vcom2 each display panel PNL1, PNL2, and as shown in Figure 7, has the independent configuration that forms, so that corresponding with each display panel PNL1, PNL2.On the other hand, independently common signal voltage Vcom1, Vcom2 also are applied to each display panel PNL1, PNL2 from single common electric voltage generating unit branch.
Fig. 8 shows the sequential chart of the example of the display drive controlling method in traditional prior art display device.
Display driver control method in the above-mentioned display device has as shown in Figure 8 been demonstrated 1 vertical-scan period in 1 frame period.Originally, the turntable driving of sweep signal S1～S64 is applied to the scanline groups SLs (SL1～SL64) of the employed display panel PNL2 of less panel size successively from gate drivers GDR.Therewith sequential synchronously and will offer from shows signal D1～D264 of Source drive SDR with the corresponding data line group DLs of each row of display panel PNL2 (DL1～DL264) and write display element of each row after, the sequential scanning of sweep signal S65～S304 is driven the scanline groups SLm that is applied to the big employed display panel PNL1 of panel size successively (SL65～SL304).Synchronously and by offering from shows signal D1～D528 of Source drive SDR (DL1～DL528) and writing after display element of each row has shown the image information of wishing to sequential on each of display panel PNL1 and PNL2 with corresponding data line group DLm of each row of display panel PNL1 therewith.Particularly, in display driver control method shown in Figure 8, after video data is write display panel PNL2, carry out the operation of series of displays drive controlling successively, in 1 frame period, shows signal is write display panel PNL1 as 1 cycle.Therefore, in 1 frame period, the independent operation cycle (separately display cycle) in chronological order (sequenced) carry out the display driver of each display panel PNL1, PNL2.
In addition, in display driver control method shown in Figure 8, shows signal is write display panel PNL1 and PNL2 successively in 1 frame period in 1 cycle.Utilize frame inversion driving method (generally being also known as the anti-phase driving method of frame) to realize this example, (Vcom1, Vcom2) (reversal of poles) is controlled in the middle counter-rotating of carrying out signal polarity at common signal voltage Vcom for each 1 frame period for it.As known in this frame inversion driving method, the polarity of voltage that is applied to the liquid crystal molecule (pixel capacity) of display element configuration is easy to make liquid crystal to degenerate or constraint, therefore as being maintained at the relatively result in the long time interval of particular polarity through 1 frame period, image quality is easy to deterioration owing to flicker waits.Therefore, as the display driver control method that is used to control this phenomenon, except the frame inversion driving method, use line (OK) inversion driving method (generally being also known as the anti-phase driving method of row) in multiple situation, it is at the signal polarity of each sweep trace counter-rotating (anti-phase) common signal voltage.
Fig. 9 shows traditional prior art display device is carried out the situation of display driver according to line inversion driving method and frame inversion driving method sequential chart.
At this, about the above-mentioned relation that the embodiment of the invention that illustrates is compared with the back, explain a kind of situation, wherein after shows signal was written into display panel PNL1, shows signal was written into display panel PNL2 in 1 frame period of display device shown in Figure 7.In addition, although have 320 sweep traces and have 160 sweep traces for display panel PNL2 for display panel PNL1, this example is made up of the data line of similar number.
Particularly, for example as shown in Figure 9, at first, the PNL1 in 1 frame period shows in the available period and utilizes gate drivers GDR, after first line scanning to the, 320 row, PNL2 shows that available period is from first line scanning to the, 160 row in display panel PNL2 in display panel PNL1.In addition, at the same time via data line utilize Source drive SDR and with each the row (sweep trace) scanning sequence T1, T2 ..., T480 (horizontal scanning period) is when synchronously providing shows signal, carries out the counter-rotating control of the signal polarity of common signal voltage Vcom1, Vcom2 for each scanning sequence of each row.In addition, carry out the counter-rotating control (reversal of poles) of the signal polarity among relevant common signal voltage Vcom1, the Vcom2 for each 1 frame period.Therefore, the number of the sweep trace among common signal voltage Vcom1, the Vcom2 is formed 480 lines (=320 line+160 lines) together, represents the sum of the sweep trace among each display panel PNL1, PNL2.The inversion driving of carrying out in display panel during drive cycle (repetition frequency) is equivalent to the situation of line inversion driving and frame inversion driving.In addition, as shown in Figure 9, BP (back) is the non-display cycle from vertical synchronization sequential (the beginning sequential in 1 frame period) to the demonstration available period of display panel PNL1.MP (center section) is the non-display cycle from the demonstration available period of display panel PNL1 to the demonstration available period of display panel PNL2.FP (front portion) is the non-display cycle from the demonstration available period of display panel PNL2 to next vertical synchronization sequential, and is known as the vertical retrace line cycle.
In addition, in cell phone with two display panels, can only on one of display panel (for example basic display unit), check image at every turn, and, can not on the display panel (for example sub-display) of opposite side, check any content because the display panel of opposite side transfers non-show state to.In this case, even in show state, encourage the display panel of one of display panel and opposite side to transfer non-show state to, each display panel is set according to line inversion driving and frame inversion driving method.Can not stop to be applied to the inversion driving of the common signal voltage on the public electrode of the display panel in the non-show state.Therefore, in fact kept being continuously applied the inversion driving of the common signal voltage on the public electrode of two display panels.
Power consumption for the display panel that reduces the relative direction in the non-show state; when the inversion driving of the common signal voltage of the public electrode that stops to offer relevant display panel, the electric charge that is stored in the previous show state in the display element discharges gradually via electrostatic protection device.As a result, on display screen, produce the class striped " noise " and the show state that are proportional to this electric leakage variable quantity and become distortion (bluring).In addition, according to the electric charge that is stored in the display element, by continuing that the voltage of constant electrode is applied to the time through growing relatively on the liquid crystal molecule, liquid crystal is easy to deterioration.
Therefore, in the display device with two display panels, even encourage the display panel of a direction and the display panel of relative direction to transfer non-show state in show state, sum is applied to common signal voltage in two display panels.Because for the inversion driving control of common signal voltage, it is necessary carrying out inversion driving according to predetermined period, therefore there is the shortcoming that increases power consumption.
Summary of the invention
Electronic equipment of the present invention comprises a plurality of display panels and comprises the display device that shows with the corresponding image of shows signal.The present invention has the advantage that can realize reducing power consumption relevant with inversion driving in each display panel.
Display device in the present invention who is used for obtaining above-mentioned advantage comprises at least: a plurality of display panels, comprise a plurality of sweep traces and a plurality of signal wire, have near the display element each point of crossing that is positioned at each sweep trace and signal wire, and be positioned at the public electrode of same position with each display element; Display panel has the sweep trace of predetermined number respectively; The scanner driver part is applied to sweep signal each of a plurality of sweep traces in each of a plurality of display panels successively, and is set to selection mode with the corresponding display element of suitable sweep trace successively; And control section, control operation, be used for selecting each each a plurality of sweep traces of the corresponding a plurality of display panels of number of scanning lines purpose ratio with a plurality of display panels successively at each predetermined scanning sequence, and a plurality of sequential in a frame period are in repeat even sequence in the display cycle between each display panels by scanner driver part.
Display cycle comprises that the number of scanning lines with each display panel all transfers the required vertical-scan period of selection mode to.
Display device also comprises: the common electrode drive device part of the public electrode of each display panel applies the common signal voltage of the voltage level that is used for being provided with each public electrode; And control section, with respect to each display panel, at each the common signal voltage on the public electrode that partly is applied to by the common electrode drive device in each display panel, at least carry out the counter-rotating control of signal polarity, thereby each line and the inversion driving in each frame period are corresponding at the selection operation of each sweep trace with the scanner driver part.
In addition, control section is set to partly be selected by scanner driver the cycle of the sweep trace of any one display panel among a plurality of display panels, when selecting the sweep trace of next relevant display panel, the signal polarity that is applied to the common signal voltage on another the public electrode of the display panel next time selected by common electrode drive device part be set to the public electrode that is applied to relevant display panel on the identical polarity of signal polarity of common signal voltage; Carry out the counter-rotating control of signal polarity at each common signal voltage, in the display cycle, equate so that be applied to the application time cycle summation of each signal polarity of the common signal voltage on the public electrode in each display panel; And in the display cycle in the frame period of the signal polarity of the common signal voltage on being applied to the public electrode of each display panel, reversal frequency is set to equate with the number of the sweep trace of each these display panel.
At least some in a plurality of signal wires in each display panel link to each other with each of these display panels jointly; And display device also comprises: a signal driver part will be applied to a plurality of signal wires with the corresponding shows signal voltage of shows signal.Each corresponding scanner driver part with a plurality of display panels is set independently.
Have first display panel and second display panel, wherein the number ratio of sweep trace is defined as i: j (i, j is a 1-position positive integer at random) situation in, a plurality of display panels comprise the first common electrode drive device part and the second common electrode drive device part at each public electrode of first display panel and second display panel, and it is applied to the first common signal voltage and the second common signal voltage that voltage level is set in each public electrode.Control section control alternately repeats to be selected the operation of the capable sweep trace of i in first display panel successively and selected the operation of the capable sweep trace of j in second display panel successively in the display cycle by the scanner driver part; And in cycle of display element of scanning first display panel, the signal polarity of the second common signal voltage the when signal polarity that is applied to the second common signal voltage on the public electrode of second display panel by the second common electrode drive device is set to the sweep trace of selecting second display panel next time; And in the cycle of the sweep trace of selecting second display panel, the signal polarity that is applied to the first common signal voltage on first public electrode of first display panel by the first common electrode drive device is set to the polarity identical with the signal polarity of the second common signal voltage.
In addition, for above-mentioned a plurality of display panels, have first display panel and second display panel, wherein the number ratio of sweep trace is defined as approximate i: j (i, j is a 1-position positive integer at random) situation in, control section comprises: pseudoperiod, be used for the adjustment of common signal voltage application time cycle, management is applied to the application time summation of each signal polarity of the common signal voltage on the public electrode of each display panel in the display cycle, it was equated in the relevant display cycle.Operation control alternately repeats to be selected the sweep trace that i is capable in first display panel successively and selected the operation of the sweep trace that j is capable in second display panel successively by the scanner driver part.
The electronic equipment of the present invention that obtains above-mentioned advantage is the electronic equipment that comprises the display device of demonstration and the corresponding image of shows signal, display device comprises: at least two display panels, comprise a plurality of sweep traces and a plurality of signal wire, have near the display element the point of crossing that is positioned at each sweep trace and signal wire, and be positioned at the public electrode of same position with each display element; Two display panels have the sweep trace of first and second numbers respectively; The scanner driver part is applied to sweep signal each of a plurality of sweep traces in each of a plurality of display panels successively, and is set to selection mode with the corresponding display element of suitable sweep trace successively; Common electrode drive device part applies the common signal voltage of the public electrode voltages level that is used for being provided with public electrode in each display panel; And control section, control, so that in the display cycle in a frame period, for each predetermined scanning sequence, by scanner driver part between each display panel alternately repetitive operation repeatedly select the corresponding a plurality of sweep traces of ratio successively with first and second numbers of sweep trace; And at each display panel, for each the common signal voltage on the public electrode that partly is applied to each display panel by the common electrode drive device, carry out the counter-rotating control of signal polarity, so that at each sweep trace and at corresponding each frame period of selection operation of each sweep trace of each display panel, partly carry out the inversion driving of each display panel by scanner driver.For example, electronic equipment is a cell phone.
Display cycle comprises and transfers the required vertical-scan period of selection mode to the number of scanning lines of each display panel is whole.
Control section is carried out control, partly selecting by scanner driver in the cycle of the sweep trace of a direction display panel in two display panels, the signal polarity that partly is applied to the common signal voltage on another direction display panel public electrode by the common electrode drive device be set to the public electrode that when next time selecting the sweep trace of another direction display panel, is applied to relevant another direction display panel on the identical polarity of signal polarity of common signal voltage; And in scanner driver is partly selected cycle of sweep trace of another direction display panel, the signal polarity that partly is applied to the common signal voltage on the public electrode of a direction display panel by the common electrode drive device be set to the public electrode that is applied to relevant another direction display panel on the identical polarity of signal polarity of common signal voltage; Carry out the counter-rotating control of signal polarity at each common signal voltage, equate so that in the display cycle, be applied to the application time cycle summation of each signal polarity of the common signal voltage on the public electrode of each display panel; And in the display cycle in the frame period of the signal polarity of the common signal voltage on being applied to the public electrode of each display panel, it is identical with the number of the sweep trace of these each display panels that reversal frequency is set to.
For have first display panel and second display panel, wherein the number ratio of sweep trace is defined as i: j (i, j is a 1-position positive integer at random) situation in two display panels, comprise that it is applied to the first common signal voltage and the second common signal voltage that voltage level is set in each public electrode at the first common electrode drive device part and the second common electrode drive device part of each public electrode of first display panel and second display panel.Control section control alternately repeats to select successively the operation of the capable sweep trace of i in first display panel by the scanner driver part and selects the operation of the capable sweep trace of j in second display panel successively in the display cycle; And in cycle of display element of scanning first display panel, the identical polarity of signal polarity of second common signal when signal polarity that partly is applied to the second common signal voltage on the public electrode of second display panel by the second common electrode drive device is set to the sweep trace of selecting second display panel next time; And in the cycle of the sweep trace of selecting second display panel, the signal polarity that is applied to the first common signal voltage on first public electrode of first display panel by the first common electrode drive device is set to the polarity identical with the signal polarity of the second common signal voltage.
In addition, have first display panel and second display panel, wherein the number ratio of sweep trace is defined as approximate i: j (i, j is a 1-position positive integer at random) the situation of two display panels in, control section comprises: pseudoperiod, be used for the adjustment of common signal voltage application time cycle, management is applied to the application time summation of each signal polarity of the common signal voltage on the public electrode of each display panel in the display cycle, it was equated in the relevant display cycle.Operation control alternately repeats to be selected the sweep trace that i is capable in first display panel successively and selected the operation of the sweep trace that j is capable in second display panel successively by the scanner driver part.
From following detailed description, in conjunction with the accompanying drawings, above-mentioned and other purpose of the present invention and features of novelty will be more apparent.Yet, should be expressly understood that accompanying drawing is the purpose in order to demonstrate just, and is not as the circumscribed definition of the present invention.
Description of drawings
Fig. 1 shows the complete configuration view of an embodiment who relates to display device of the present invention;
Fig. 2 A and 2B show the complete configuration view of an embodiment who relates to electronic equipment of the present invention (cell phone);
Fig. 3 shows the sequential chart of first embodiment of the drive controlling method in relating to LCD of the present invention;
Fig. 4 shows the sequential chart of second embodiment of the drive controlling method in relating to LCD of the present invention;
Fig. 5 shows the sequential chart of the 3rd embodiment of the drive controlling method in relating to LCD of the present invention;
Fig. 6 shows the sequential chart of the 4th embodiment of the drive controlling method in relating to LCD of the present invention;
Fig. 7 shows the summary arrangement plan of the example of the traditional prior art display device that comprises two display panels;
Fig. 8 shows the sequential chart of the example of the display driver control method in traditional prior art display device; And
Fig. 9 is traditional prior art display device is carried out the situation of display driver according to line inversion driving method and frame inversion driving method a sequential chart.
Embodiment
Hereinafter, the embodiment shown in is with reference to the accompanying drawings explained the detailed description of the electronic equipment of the present invention that comprises display device and related display apparatus and the additional drive controlling method of display device.
＜complete configuration 〉
At first, explain the complete configuration that comprises the electronic equipment that relates to display device of the present invention.
Fig. 1 shows the complete configuration view of an embodiment who relates to display device of the present invention.
As shown in Figure 1, relating to display device of the present invention roughly is divided into and comprises: main display panel 10m, sub-display panel 10s, data line group Ld, data driver 20, scanline groups Lsm and Lss, main sweep driver 30m, sub-scanner driver 30s, shows signal produce circuit 40, main control electrode driver circuit 60m, sub-common electrode drive device circuit 60s and lcd controller 50.Main display panel 10m (first display panel) and sub-display panel 10s (second display panel) display element are according to the two-dimensional array arrangement and have the predetermined face board size respectively.Array data line group Ld is so that share in the column direction extension and with main display panel 10m and sub-display panel 10s.Individual data driver 20 (Source drives; The signal driver part) links to each other with data line group Ld.Arrange scanline groups Lsm, Lss, so that extend at the line direction of main display panel 10m and sub-display panel 10s.Main sweep driver 30m (is called " master driver " for simplification in the drawings; The scanner driver part) the scanline groups Lsm with main display panel 10m links to each other.Shows signal produces circuit 40 and is made up of RGB demoder 41 and reversal amplifier 42.Your Majesty's common electrode drive circuit 60m (common electrode drive device part) is total to the public electrode (counter electrode) that signal voltage Vcomm (the first common signal voltage) offers main display panel 10m with the Your Majesty.Sub-common electrode drive device circuit 60s (common electrode drive device part) offers sub-common signal voltage Vcoms (the second common signal voltage) public electrode of sub-display panel 10s.Lcd controller 50 (control section) offers above-mentioned data driver 20, main sweep driver 30m, sub-scanner driver 30s, Your Majesty's common electrode drive circuit 60m and sub-common electrode drive device circuit 60 at least with predetermined control signal.In addition, when above-mentioned main display panel 10m and sub-display panel 10s were made up of the display panels of transmission-type, what provide in the sub-display panel 10s of a main display panel 10m and a reverse side backlightly was made up of the light source of for example cold cathode ray tube etc. and the light wave guide card of for example acrylic sheet.
Hereinafter, explain each assembly in detail.
Main display panel 10m and sub-display panel 10s are the display panels that has with the corresponding panel construction of known driven with active matrix method.Main display panel and sub-display panel 10s are included in data line group Ld and the scanline groups Ls that arranges according to the direction that crosses one another between the relative transparent substrates respectively.In addition, a plurality of display elements (picture unit transistor, pixel capacity and auxiliary capacity) are arranged near each point of crossing of data line group Ld and scanline groups Ls, link to each other with scanline groups Ls with data line group Ld respectively.At this,, show the situation that a kind of number that is arranged in the data line of main display panel 10m and sub-display panel 10s equates with reference to figure 1.Yet, shown in traditional prior art (with reference to figure 7),, may reduce the data line number that is arranged in sub-display panel 10s than main display panel 10m.
In addition, above-mentioned main display panel 10m, sub-display panel 10s, data line group Ld and scanline groups Ld can be placed (installation) on the printed circuit board (PCB) of single dirigibility.In addition, as will be described later, data driver 20, main sweep driver 30m and sub-scanner driver 30s also can be installed on the printed circuit board (PCB) of above-mentioned dirigibility.
Data driver 20 links to each other with data line group Ld and is positioned at same position with above-mentioned main display panel 10m and sub-display panel 10s.Horizontal control signal according to lcd controller 50 provides produces electric current 40 from shows signal data driver 20 is provided.For example, 1 row unit comprises and keeps each color R (red), G (green) and the B (indigo plant) of luminance signal (shows signal).Therefore, offered data line group Ld simultaneously with the corresponding shows signal voltage of this luminance signal.
Main sweep driver 30m and sub-scanner driver 30s respectively be positioned at above-mentioned main display panel 10m each scanline groups Lsm, Lss and link to each other with sub-display panel 10s next door.According to the vertical control signal from lcd driver 50 outputs, the predetermined sweep signal (selection signal) that selection mode is set is offered each sweep trace of main display panel 10m and sub-display panel 10s successively.Therefore, selecting sequential synchronously with this, by will be applied to the display element position that intersects with above-mentioned data line group Ld from the corresponding shows signal voltage of the luminance signal of data driver 20, shows signal voltage is written into the corresponding display element of the sweep trace that is set to selection mode.At this, the panel size of main display panel 10m and sub-display panel 10s, that is, the number of sweep trace is different, and the approximate (i: j of the panel size ratio of main display panel 10m and sub-display panel 10s (number of sweep trace); I, j are 1-position positive integers at random).In brief, relate to the main sweep driver 30m of embodiment and sub-scanner driver 30s with the corresponding timing sequence generating effect of this panel size ratio.After the sweep trace that successively sweep signal is applied to the capable part of i among the main display panel 10m, operation is applied to sweep signal the sweep trace of the capable part of j among the sub-display panel 10s successively and finishes turntable driving.Executable operations control, thus between main display panel 10m and sub-display panel 10s, alternately repeat.Therefore, write the display element of each row of becoming owner of among display panel 10m and the sub-display panel 10s successively with the corresponding shows signal voltage of luminance signal.In the drive controlling method, will further explain function and the operation of main sweep driver 30m and sub-scanner driver 30s.
In addition, Fig. 1 shows the functional block diagram of the summary configuration that relates to display device of the present invention.Although show corresponding main sweep driver 30m that provides with each display panel and sub-scanner driver 30s as separate configurations, especially, as shown in Figure 7, this device can have the configuration of using the single driver chip to form the configuration of these scanner drivers in an assembly or having Standalone Drives chip as shown in Figure 1.
Forming RGB demoder 41 that shows signal produces circuit 40 extracts each carrier chrominance signal R, G, B and outputs to reversal amplifier 42 from the image input signal that the outside of display device provides.In addition, the polarity inversion signal FRPp (frame/line reverse signal) that provides according to lcd controller 50 of reversal amplifier 42 counter-rotating of carrying out the rgb signal polarity of being extracted by RGB demoder 41 is handled.Produce RGB reverse signal (being also referred to as inversion signal) and output to data driver 20 as luminance signal (simulating signal).
Horizontal-drive signal H that lcd controller 50 provides according to the outside from display device and vertical synchronizing signal V (or from image input signal extracted by RGB demoder 41) produce above-mentioned polarity inversion signal FRPp and polarity inversion signal FRPm, FRPs.When offering reversal amplifier 42 and Your Majesty's common electrode drive circuit 60m and sub-common electrode drive device circuit 60s (will be described hereinafter) separately, by producing horizontal control signal and vertical control signal and offering data driver 20 respectively, main sweep driver 30m and sub-scanner driver 30s, be applied to each display element (pixel capacitors one side) at scheduled timing and the corresponding shows signal voltage of luminance signal, and realize control so that show predetermined image information to main display panel 10m and sub-display panel 10s according to image input signal.
At this, in relating to embodiment lcd controller 50, offer polarity inversion signal FRPp, FRPm, the FRPs of reversal amplifier 42, Your Majesty's common electrode drive circuit 60m and sub-common electrode drive device circuit 60s and horizontal control signal and the vertical control signal that is provided for data driver 20, main sweep driver 30m and sub-scanner driver 30s by control, carry out the drive controlling operation (will be described hereinafter) that is different from embodiment.
Particularly, in main display panel 10m and sub-display panel 10s, write in the sweep spacing of shows signal voltage, operation of each row of main display panel 10m of switched scan (being applied to the sweep signal on the sweep trace) and sub-display panel 10s between every predetermined number of main sweep driver 30m and sub-scanner driver 30s is capable, and alternately the repeated vertical control signal is provided with.
Your Majesty's common electrode drive circuit 60m and sub-common electrode drive device circuit 60s respectively be arranged on above-mentioned main display panel 10m and link to each other with public electrode among the sub-display panel 10s.
According to polarity inversion signal FRPm, FRPs the Your Majesty who is applied on each public electrode is set in order and is total to signal voltage Vcomm and sub-common signal voltage Vcoms, make signal polarity with respect to the shows signal voltage reversal on each display element (pixel capacitors) that is applied to main display panel 10m and sub-display panel 10s from lcd controller 50 outputs.
Next, explain according to electronic equipment of the present invention.
The cell phone that comprises two display panels is to use the electronic equipment that relates to display device of the present invention ideally.
Fig. 2 A and 2B show the complete configuration view of an embodiment who relates to electronic equipment of the present invention (cell phone).
Fig. 2 A shows the figure of main operation function surface (inside surface) side that relates to electronic equipment of the present invention (cell phone).Fig. 2 B shows the figure of opposite (outside surface) side of electronic equipment.At this, although the equipment that illustrates has folding structure, this shape is one of employed a plurality of types of cell phone.Therefore, notice that electronic equipment can have another kind of structure, for example strip type, rotation (rotatable) type, slip (rotation) type etc.
Shown in Fig. 2 A and 2B, in brief, the cell phone 100 that relates to embodiment has folding structure, and by with the lower case 115, manual operation button 113 (keypad) etc. of hinged 114 adjacency that are placed on central authorities and have the basic display unit 111 (corresponding with above-mentioned main display panel 10m) back-to-back installed and the top demonstration shell 116 of sub-display 112 (corresponding with above-mentioned sub-display panel 10s) is formed.
Promptly, be set at main operation surface (lower inside surface) side at lower case 115, manual operation button 113, have the button that is used to carry out selection and carry out specific function and classify, for example import button, phone directory or other various application that telephone number is used for place calls, is used for inputting digital character.Top shows that shell 116 has for example basic display unit 111, basic display unit 111 shows by the above-mentioned manual operation button 113 of operation or carries out to use and wait alphanumeric character and the symbol of importing, and when closing folding cell phone 100 with above-mentioned manual operation button 113 relative (inwardly).In addition, sub-display 112 shows the arrival state of for example current time and date, E-mail and call etc., and is positioned at an opposite side (outwardly) of the outside of checking basic display unit 111 when folding cell phone 100.For example, basic display unit 111 uses the display panel of the relative higher resolution of being made up of the bigger screen to uniform angle with about two inches (2 ").For example, sub-display 112 uses the display panel of the relatively low sharpness of being made up of the smaller screen to uniform angle with about an inch (1 ").
Next, explain the drive controlling operation of display device in conjunction with the accompanying drawings with above-mentioned this configuration.At this, carry out the drive controlling operation (display-apparatus control method) that illustrates below according to the various control signals that above-mentioned lcd controller 50 provides.
＜the first embodiment 〉
Fig. 3 shows the sequential chart of first embodiment of the drive controlling method in relating to LCD of the present invention.
At this, explain a kind of drive controlling method in conjunction with the display device that comprises the previous configuration of having explained.The number that is arranged in the sweep trace of main display panel 10m is 320.The number that is arranged in the sweep trace of sub-display panel 10s is 160.With the main display panel 10m that makes an explanation and the panel size ratio (number of sweep trace) of sub-display panel 10s accurately is 2: 1.
In addition, the number of the data line among main display panel 10m and the sub-display panel 10s can be that identical number maybe can be different number.
As shown in Figure 3, the drive controlling method that relates to the display device of present embodiment shows 1 vertical-scan period (display cycle) in 1 frame period.At first, at scanning sequence T1 (horizontal scanning period), main sweep driver 30m is applied to the row of first among the main display panel 10m (line) sweep trace according to the vertical control signal that lcd controller 50 provides with high level sweep signal S1m.After this, at scanning sequence T2, high level sweep signal S2m is applied to second horizontal scanning line successively.Apply sequential synchronously at sweep trace with each row, by synchronously scanning sequence T1 from data driver 20 successively shows signal voltage is applied to main display panel 10m display element first row and scanning sequence T2 is applied to shows signal voltage second row of display element the main display panel 10m via each data line, the predetermined luminance signal is write first and second row of the display element of becoming owner of display panel 10m successively.
At this, it is the signal voltage of positive polarity that the shows signal voltage that applies at scanning sequence T1 is set to respect to predetermined display centre voltage, and at the shows signal voltage that scanning sequence T2 the applies signal voltage that to be set to respect to this display centre voltage be negative polarity.
In addition, the Your Majesty who applies to the public electrode of main display panel 10m from Your Majesty's common electrode drive circuit 60m altogether signal voltage Vcomm be set to be the signal voltage of negative polarity and be set to signal voltage (high level) at scanning sequence T2 place at above-mentioned scanning sequence T1 with respect to suitable common signal center voltage Vcomc with respect to common signal center voltage Vcomc.
On the other hand, because at scanning sequence T1, do not carry out the video data write operation of video data during the T2 in sub-display panel 10s one side, when the vertical control signal that provides according to lcd controller 50 is applied to low level sweep signal S1s～S160s from sub-scanner driver 30s each sweep trace the sub-display panel 10s, the polarity inversion signal FRPs that provides according to lcd controller 50, sub-common signal voltage Vcoms with one of high or low signal level is applied to the public electrode of sub-display panel 10s from sub-common electrode drive device circuit 60s and is further controlled, thereby, at continuous scanning sequence T1, applied the sub-common signal voltage Vcoms of same signal level (low level among Fig. 3) during the T2.
Subsequently, at scanning sequence T3, the vertical control signal that sub-scanner driver 30s provides according to lcd controller 50 is applied to first horizontal scanning line among the sub-display panel 10s with high level sweep signal S1s.
With scanning sequence T3 synchronously, by via each data line the shows signal voltage of positive polarity being applied to first row of the display element the sub-display panel 10s from data driver 20 simultaneously, the predetermined luminance signal is written into first row of the display element among the sub-display panel 10s.At this, the sub-common signal voltage of low level is applied to the public electrode of sub-display panel 10s from sub-common electrode drive device circuit 60s.Therefore, during scanning sequence T1～T3, applied sub-common signal voltage Vcoms constantly with same signal level (low level).
On the other hand, because during scanning sequence T3, do not carry out the video data write operation of video data in main display panel 10m one side, when the vertical control signal that provides according to lcd controller 50 is applied to low level sweep signal S1m～S320m from main display driver 30m each sweep trace the main display panel 10m, the polarity inversion signal FRPm that provides according to lcd controller 50, the common signal voltage Vcomm that will have one of high or low signal level (low level Fig. 3) from Your Majesty's common electrode driver control circuit 60m is applied to the public electrode of main display panel 10m.
Subsequently, at scanning sequence T4, T5, main sweep driver 30m is applied to high level sweep signal S3m, S4m the row of third and fourth among the main display panel 10m successively according to vertical control signal.
With this scanning sequence synchronously, by the shows signal voltage of positive polarity being applied to the third line of the display element the main display panel 10m and via each data line the shows signal voltage of negative polarity being applied to the fourth line of the display element among the main display panel 10m at scanning sequence T5 at scanning sequence T4 from data driver 20 simultaneously, the predetermined luminance signal has been write third and fourth row of the display element among the main display panel 10m successively.
At this, scanning sequence T4 be low level and scanning sequence T5 be high level the Your Majesty altogether signal voltage Vcomm be applied to the public electrode of main display panel 10m successively from Your Majesty's common electrode drive circuit 60m.Therefore, at scanning sequence T3, T4, applied Your Majesty constantly and be total to signal voltage with same signal level (low level).
More specifically, about each scanning sequence T1, T2, T4, T5, T7, T8 ... owing to alternately the shows signal voltage of positive polarity and negative polarity is applied on the pixel capacitors of each the row display element among the main display panel 10m, alternately with low level and high level Your Majesty altogether signal voltage Vcomm be applied on the public electrode of main display panel 10m and in main display panel 10m, carry out line (OK) inversion driving.
On the other hand, at scanning sequence T4, T5, in sub-display panel 10s one side, according to vertical control signal when sub-scanner driver 30s is applied to low level sweep signal S1s～S160s on each sweep trace, according to polarity inversion signal FRPs, the sub-common signal voltage Vcoms that will have one of high or low level from sub-common electrode drive device circuit 60s constantly is applied on the public electrode.
Subsequently, at scanning sequence T6, sub-scanner driver 30s is applied to second horizontal scanning line among the sub-display panel 10s according to vertical control signal with high level sweep signal S2s.
With this scanning sequence T6 synchronously, by via each data line the shows signal voltage of negative polarity being applied to second row of the display element the sub-display panel 10s from data driver 20 simultaneously, the predetermined luminance signal is written into second row of the display element among the sub-display panel 10s.At this, the sub-common signal voltage of high level Vcoms is applied to the public electrode of sub-display panel 10s from sub-common electrode drive device circuit 60s.Therefore, during scanning sequence T4～T6, applied sub-common signal voltage Vcoms constantly with same signal level (high level).
More specifically, for each scanning sequence T3, T6, T9 ... because alternately the shows signal voltage with positive polarity and negative polarity is applied on the pixel capacitors of each the row display element among the sub-display panel 10s, alternately the sub-common signal voltage Vcoms with low level and high level is applied to the public electrode of sub-display panel 10s and carries out line (OK) inversion driving in sub-display panel 10s.
On the other hand, at this scanning sequence T6, in main display panel 10m one side, when will hanging down four Anping sweep signal S1m～S320m from main sweep driver 30m according to vertical control signal and being applied on each sweep trace, according to polarity inversion signal FRPm, constantly the Your Majesty that will have one of high or low signal level (Fig. 3 for high level) from Your Majesty's common electrode drive circuit 60s altogether signal voltage Vcomm be applied to public electrode.
Below, after carrying out turntable driving, carry out turntable driving at 1 row part of the sweep trace among the sub-display panel 10s at the 2 row parts of main display panel 10m, by alternately repeating similar control operation till scanning sequence T480, in 1 vertical-scan period (display cycle) in 1 frame period, the luminance signal of hope (shows signal voltage) is written among main display panel 10m with 320 sweep traces and the sub-display panel 10s with 160 sweep traces and as image information display.
In addition, after 1 vertical-scan period in 1 frame period finishes, be total to signal voltage Vcomm and sub-common signal voltage Vcoms about shows signal voltage and the Your Majesty who in above-mentioned 1 vertical-scan period, is applied on each the row display element (pixel capacitors and public electrode) among main display panel 10m and the sub-display panel 10s, the vertical retrace line cycle is set.It is identical with each scanning sequence T1～T480 in the above-mentioned vertical-scan period to distribute to the cycle (for example, the cycle of the part of 3 stages among Fig. 3) of the duration of odd number part.In these vertical retrace line cycles (non-display cycle), carry out the odd number counter-rotating that the Your Majesty is total to signal voltage Vcomm and sub-common signal voltage Vcoms.For example, as shown in Figure 3, the Your Majesty is total to signal voltage Vcomm counter-rotating 3 times and sub-common signal voltage Vcoms reverses 1 time.Therefore, the reverse signal polarity of each signal voltage in next 1 frame period and in main display panel 10m and sub-display panel 10s, carry out the frame inversion driving.
In addition, as shown in Figure 3, when in sub-display panel 10s, carrying out turntable driving, the Your Majesty in main display panel 10m one side altogether the signal polarity of signal voltage Vcomm be set to sub-display panel 10s in the identical polarity of signal polarity of sub-common signal voltage Vcoms.In addition, when in main display panel 10m, carrying out turntable driving, the identical polarity of signal polarity of the sub-common signal voltage Vcoms among the sub-display panel 10s that the signal polarity of the sub-common signal voltage Vcoms in sub-display panel 10s one side is set to take place with ensuing turntable driving.
Therefore, in 1 vertical-scan period (display cycle), about main display panel 10m and sub-display panel 10s, carry out line (OK) inversion driving respectively, and in each display panel, be provided with, thereby the temporal summation between each signal polarity of each common signal voltage Vcomm, Vcoms (that is, signal polarity is to equate in the cycle of positive polarity and cycle that signal polarity is negative polarity) is identical.Altogether the number of the sweep trace among inversion driving frequency and the main display panel 10m of signal voltage Vcomm is identical to be applied to Your Majesty on the main display panel 10m.The number of the sweep trace among the inversion driving frequency that is applied to the sub-common signal voltage Vcoms on the sub-display panel 10s and the sub-display panel 10s is identical.
In addition, when display in a display panel was carried out turntable driving, the signal polarity of common signal voltage was applied on the public electrode in second display panel.Yet, the present invention be not limited to be set to as mentioned above with the public electrode that is applied to a display panel on the identical polarity of signal polarity of common signal voltage.For example, this equipment can be set to opposite polarity or for each preset frequency have only at random once for opposite polarity.In a word, can use other technology, as long as this setting is set, make in main display panel and sub-display panel can not change between the temporal summation in the signal polarity of each common signal voltage during the write cycle (1 vertical-scan period) of the luminance signal of the 1 screen page.
Therefore, in according to line inversion driving method and frame inversion driving method traditional prior art display device that realize, that comprise two display panels, when the turntable driving successively of carrying out each display panel and when writing the luminance signal of the common signal voltage on the public electrode that is applied to each display panel separately, only realize at two display panels in the total corresponding frequency (repetition rate) of the sweep trace that distributes carry out inversion driving.Yet, according to the display device that relates to present embodiment, only only be implemented in 1 vertical-scan period (display cycle) at main display panel in the corresponding frequency of number of sweep trace carry out the inversion driving of the common signal voltage on main display panel one side.In addition, because only carry out the inversion driving that son shows the common signal voltage on the side, can reduce the drive cycle (frequency of repetition) that relates to inversion driving at the corresponding frequency of the number of the sweep trace in the sub-display panel.In this manner, when realizing reduction in power consumption, can realize line inversion driving and frame inversion driving in main display panel and the sub-display panel.Therefore, can accurately control the degeneration and the constraint of the liquid crystal molecule in the display element configuration that makes the image quality deterioration that causes owing to flicker problem, equipment failure etc.
＜the second embodiment 〉
Next, class is explained second embodiment that the drive controlling of the display device with above-mentioned configuration is operated in conjunction with the accompanying drawings.
Fig. 4 shows second of the drive controlling method that relates in the LCD of the present invention
The sequential chart of embodiment.
In addition, for the control operation of the above-mentioned first embodiment equivalence, simplify or omit its explanation.
In the present embodiment that comprises the display device of above-mentioned configuration (with reference to figure 1), the number of the sweep trace that distributes among the main display panel 10m is 320.The number of the sweep trace that distributes among the sub-display panel 10s is 107.The panel size ratio of main display panel 10m and sub-display panel 10s was interpreted as approximate 3: 1 rather than simple integer ratio more.
In addition, the number of the data line among main display panel 10m and the sub-display panel 10s can be that identical number maybe can be different number.
As shown in Figure 4, the drive controlling method that relates to the display device of present embodiment shows 1 vertical-scan period in 1 frame period.At first, at scanning sequence T1～T3 (horizontal scanning period), from main sweep driver 30m high level sweep signal S1m～S3m is applied to successively main display panel 10m sweep trace first to the third line.With this scanning sequence T1～T3 synchronously, by successively shows signal voltage being applied to first each display element the main display panel 10m via each data line to the third line from data driver 20, the predetermined luminance signal write successively the display element of becoming owner of in the display panel first to the third line.
At this, as shown in Figure 4, at scanning sequence T1～T3, the shows signal voltage that applies from data driver 20 is set to respect to being scheduled to the signal voltage that display centre voltage is respectively positive and negative, is just being formed by each polarity.In addition, from Your Majesty's common electrode drive circuit 60m be applied on the public electrode of main display panel 10m the Your Majesty altogether signal voltage Vcomm be set to the signal voltage that is respectively positive and negative, just forming by each polarity with respect to predetermined common signal center voltage Vcomc.
On the other hand, because during scanning sequence T1～T3, in sub-display panel 10s one side, do not carry out the write operation of video data, in each sweep trace that from sub-scanner driver 30s low level sweep signal S1s～S107s is applied to the sub-display panel 10s, control is carried out in operation, thereby the sub-common signal voltage Vcoms that will have one of high or low signal level (low level Fig. 4) from sub-common electrode drive device circuit 60s constantly is applied on the public electrode of sub-display panel 10s.
Subsequently, at scanning sequence T4, high level sweep signal S1s is applied to first horizontal scanning line of sub-display panel 10s from sub-scanner driver 30s.
At this, the sub-common signal voltage of low level Vcoms is applied on the public electrode of son demonstration 10s from sub-common electrode drive device circuit 60s.Therefore, during scanning sequence T1～T4, applied sub-common signal voltage Vcoms constantly with same signal level (low level).
On the other hand, because at scanning sequence T4, in main display panel 10m one side, do not carry out the video data write operation, in on each sweep trace that from main sweep driver 30m low level sweep signal S1m～S320m is applied to the main display panel 10m, the common signal voltage Vcomm of Your Majesty that will have one of high or low level (low level Fig. 4) from Your Majesty's common electrode drive circuit 60m is applied on the public electrode of main display panel 10m.Therefore, at scanning sequence T3, T4, applied Your Majesty constantly and be total to signal voltage Vcomm with same signal level (low level).
Subsequently, at scanning sequence T5～T7, high level sweep signal S4m～S6m is applied to successively the 4th to the 6th row of sweep trace the main display panel 10m from main sweep driver 30m.With this scanning sequence T5～T7 synchronously, by successively shows signal voltage being applied to each display element that the 4th to the 6th the main display panel 10m goes from data driver 20 via each data line, predetermined luminance information is write the 4th to the 6th row of the display element of becoming owner of among the display panel 10m successively.
At this, the shows signal that applies from data driver 20 at scanning sequence T5～T7 is set to respect to being scheduled to the signal voltage that display centre voltage is respectively positive and negative, is just being formed by each polarity.In addition, from Your Majesty's common electrode drive circuit 60m be applied on the public electrode of main display panel 10m the Your Majesty altogether signal voltage be set to the signal voltage that is respectively positive and negative, just forming by each polarity with respect to predetermined common signal center voltage Vcomc.
More specifically, for each scanning sequence T1～T3, T5～T7, T9～... owing to alternately the shows signal voltage of positive polarity and negative polarity is applied on the pixel capacitors of each the row display element among the main display panel 10m, alternately low level and high level and common signal voltage Vcomm is applied on the public electrode of main display panel 10m and in main display panel 10m, carries out line (OK) inversion driving.
On the other hand, in scanning sequence T5～T7, in sub-display panel 10s one side, when sub-scanner driver 30s is applied to low level sweep signal S1s～S107s on each sweep trace, according to polarity inversion signal FRPs, the sub-common signal voltage Vcoms that will have one of high or low level (high level Fig. 4) from sub-common electrode drive device circuit 60s constantly is applied on the public electrode.
Subsequently, at scanning sequence T8, sub-scanner driver 30s is applied to high level sweep signal S2s on second horizontal scanning line among the sub-display panel 10s.With this scanning sequence T8 synchronously, by via each data line the shows signal voltage of negative polarity being applied to second row of the display element the sub-display panel 10s from data driver 20 simultaneously, the predetermined luminance signal is written into second row of the display element among the sub-display panel 10s.At this, the sub-common signal voltage of high level Vcoms is applied on the public electrode of sub-display panel 10s from sub-common electrode drive device circuit 60s.Therefore, during scanning sequence T5～T8, apply sub-common signal voltage Vcoms constantly with same signal level (high level).
More specifically, for scanning sequence T4, T8 ... owing to alternately the shows signal voltage of positive polarity and negative polarity is applied on the pixel capacitors of each the row display element among the sub-display panel 10s, alternately low level and the sub-common signal voltage of high level Vcoms is applied on the public electrode of sub-display panel 10s and in sub-display panel 10s, carries out line (OK) inversion driving.
On the other hand, at this scanning sequence T8, in main display panel 10s one side, when main display driver 30m is applied to low level sweep signal S1m～S320m on each sweep trace, constantly the Your Majesty that will have one of high or low level (high level Fig. 4) from Your Majesty's common electrode drive circuit 60m altogether signal voltage Vcomm be applied on the public electrode.Therefore, during scanning sequence T7～T8, apply Your Majesty constantly and be total to signal voltage Vcomm with same signal level (high level).
Below, after carrying out turntable driving, carry out turntable driving at 1 row part of the sweep trace among the sub-display panel 10s at the 3 row parts of main display panel 10m, by alternately repeating similar control operation till scanning sequence T428, in 1 vertical-scan period (display cycle) in 1 frame period, the luminance signal of hope (shows signal voltage) is written among main display panel 10m with 320 sweep traces and the sub-display panel 10s with 107 sweep traces and as image information display.
At this, in the present embodiment, because the panel size ratio of main display panel 10m and sub-display panel 10s (number of sweep trace) is not accurately 3: 1, when the signal polarity inversion timing of each common signal voltage Vcomm, Vcoms in each display panel was embodied as only with the corresponding sequential of sweep trace, the sequential that produces in alternate sweep drives at the number of scanning lines in each display panel was not constant.As shown in Figure 4,, carried out turntable driving constantly,, only carried out turntable driving at 2 row parts of sweep trace at scanning sequence T425 at 3 row parts of the sweep trace among the main display panel 10s although before scanning sequence T425.Therefore, in this embodiment, during 1 vertical-scan period,, do not carry out the turntable driving of the sweep trace of each display panel for the temporal summation of managing each signal polarity that makes each common signal voltage is identical.But, a pseudo-trace interval is provided, be used to adjust each common signal voltage application time cycle.For the pseudo-trace interval among Fig. 4, scanning sequence T427 has the cycle that equates with 1 scanning sequence in 1 vertical-scan period.Therefore, can make the temporal summation identical (equating) of each signal polarity of each common signal voltage Vcomm, Vcoms.
In addition, drive controlling method (1 vertical-scan period) according to the 1 above-mentioned frame period, shows signal voltage and Your Majesty altogether signal voltage Vcomm are applied on each row display element (pixel capacitors and public electrode) among main display panel 10m and the sub-display panel 10s, each signal polarity of inverted rotor common signal voltage Vcoms in the ensuing frame period, and in main display panel 10m and sub-display panel 10s, carry out the frame inversion driving.
In addition, as shown in Figure 4, when carrying out the turntable driving of sub-display panel 10s, the Your Majesty of main display panel 10m one side altogether the signal polarity of signal voltage Vcomm be set to sub-display panel 10s in the identical polarity of signal polarity of sub-common signal voltage Vcoms.In addition, when carrying out the turntable driving of main display panel 10m, the signal polarity of the sub-common signal voltage Vcoms of sub-display panel 10s one side is set to the identical polarity of signal polarity of the sub-common signal voltage Vcoms among the sub-display panel 10s with ensuing turntable driving.Therefore, in 1 vertical-scan period, in the time can making the Your Majesty that is applied on the main display panel 10m inversion driving frequency of signal voltage Vcomm equals the number of the sweep trace among the main display panel 10m altogether, the number of the sweep trace among the inversion driving frequency that is applied to the sub-common signal voltage Vcoms on the sub-display panel 10s and the sub-display panel 10s is identical.
Therefore, even the panel size ratio (number of sweep trace) at main display panel and sub-display panel is set up as substantially at 3: 1 o'clock, be similar in above-mentioned first embodiment, wherein respectively common signal voltage is applied on main display panel and the sub-display panel, this method only need inversion driving respectively with main display panel or sub-display panel in the corresponding frequency of number of sweep trace.In this manner, when can reducing the drive cycle (frequency) that relates to inversion driving and realizing that power consumption reduces, can realize basic display unit and sub-display center line inversion driving and frame inversion driving.Therefore, can accurately control the degeneration and the constraint of the liquid crystal molecule in the display element configuration that makes the image quality deterioration that causes owing to flicker problem, equipment failure etc.
＜the three embodiment 〉
Next, in conjunction with the accompanying drawings, explain the 3rd embodiment of display device ground drive controlling operation simply with above-mentioned configuration.
Fig. 5 shows the 3rd of the drive controlling method that relates in the LCD of the present invention
The sequential chart of embodiment.
In addition, for the control operation that is equivalent to above-mentioned first and second embodiment, simplify or omit its explanation.
In this embodiment that comprises the display device of above-mentioned configuration (with reference to figure 1), the number of the sweep trace among the main display panel 10m is 320.The number of the sweep trace among the sub-display panel 10s is 80.The panel size ratio of main display panel 10m and sub-display panel 10s (number of sweep trace) accurately is 4: 1.
As shown in Figure 5, the display device point drive controlling method that relates to present embodiment shows 1 vertical-scan period in 1 frame period.At scanning sequence T1～T4, this level sweep signal S1m～S4m be applied to successively sweep trace among the main display panel 10m first to fourth line.Like this scanning sequence T1～T4, by via each data line shows signal voltage being applied to suitable first to fourth line from data driver 20 successively, the predetermined luminance signal write successively the display element of becoming owner of among the display panel 10m first to fourth line.
Subsequently, at scanning sequence T5, high level sweep signal S1s is applied on first horizontal scanning line of sub-display panel 10s from sub-scanner driver 30s.At this scanning sequence T5, by via each data line shows signal voltage being applied to suitable first row of display element from data driver 20 simultaneously, the predetermined luminance signal is written into first row of the display element among the sub-display panel 10s.
Below, after carrying out turntable driving at the fourth line of the sweep trace among the main display panel 10m, 1 row part at the sweep trace among the sub-display panel 10s is carried out turntable driving, by alternately repeating similar control operation till scanning sequence T400, in 1 vertical-scan period (display cycle) in 1 frame period, the luminance signal of hope (shows signal voltage) is written among main display panel 10m with 320 sweep traces and the sub-display panel 10s with 80 sweep traces and as image information display.
In addition, in above-mentioned drive controlling method, as shown in Figure 5, scanning sequence T1～T4, T6～T9, T11～... owing to alternately the shows signal voltage of positive polarity and negative polarity is applied on the pixel capacitors of each the row display element among the main display panel 10m, alternately with low level and high level Your Majesty altogether signal voltage Vcomm be applied on the public electrode of main display panel 10m and in main display panel 10m, carry out line (OK) inversion driving.
In addition, scanning sequence T5, T10 ... owing to alternately the shows signal voltage of positive polarity and negative polarity is applied on the pixel capacitors of each the row display element among the sub-display panel 10s, alternately low level and the sub-common signal voltage of high level Vcoms is applied on the public electrode of sub-display panel 10s and in sub-display panel 10s, carries out line (OK) inversion driving.
In addition, after 1 vertical-scan period in 1 frame period finishes, the Your Majesty who is applied to for shows signal voltage and in above-mentioned 1 vertical-scan period on each the row display element (pixel capacitors and public electrode) among main display panel 10m and the sub-display panel 10s is total to signal voltage Vcomm and sub-common signal voltage Vcoms, and the vertical retrace line cycle (non-display cycle) is set.The cycle (for example, the cycle of the part of 3 stages among Fig. 5) of distributing to the duration of odd number part is identical with each of above-mentioned scanning sequence T1～T400.In these vertical retrace line cycles (non-display cycle), carry out the odd number counter-rotating that the Your Majesty is total to signal voltage Vcomm and sub-common signal voltage Vcoms.For example, as shown in Figure 5, the Your Majesty is total to signal voltage Vcomm counter-rotating 5 times and sub-common signal voltage Vcoms reverses 1 time.Therefore, the reverse signal polarity of each signal voltage in next 1 frame period and in main display panel 10m and sub-display panel 10s, carry out the frame inversion driving.
In addition, as shown in Figure 5, when in sub-display panel 10s, carrying out turntable driving, the Your Majesty in main display panel 10m one side altogether the signal polarity of signal voltage Vcomm be set to sub-display panel 10s in the identical polarity of signal polarity of sub-common signal voltage Vcoms.In addition, when in main display panel 10m, carrying out turntable driving, the signal polarity of the sub-common signal voltage Vcoms in sub-display panel 10s one side be set to ensuing turntable driving in sub-display panel 10s in the identical polarity of signal polarity of sub-common signal voltage Vcoms.Therefore, in 1 vertical-scan period, altogether the number of the sweep trace among inversion driving frequency and the main display panel 10m of signal voltage Vcomm is identical to be applied to Your Majesty on the main display panel 10m.The number of the sweep trace among the inversion driving frequency that is applied to the sub-common signal voltage Vcoms on the sub-display panel 10s and the sub-display panel 10s is identical.
Therefore, even in the panel size ratio (number of sweep trace) of main display panel and sub-display panel is 4: 1 situation, be similar to above-mentioned first and second embodiment, wherein independently common signal voltage is applied on main display panel and the sub-display panel, this method only need inversion driving respectively with main display panel or sub-display panel in the corresponding frequency of number of sweep trace.In this manner, when can reducing the drive cycle (frequency) that relates to inversion driving and realizing that power consumption reduces, can realize basic display unit and sub-display center line inversion driving and frame inversion driving.Therefore, can accurately control the degeneration and the constraint of the liquid crystal molecule in the display element configuration that makes the image quality deterioration that causes owing to flicker problem, equipment failure etc.
＜the four embodiment 〉
Next, explain the 4th embodiment of the drive controlling operation of display device in conjunction with the accompanying drawings simply with above-mentioned configuration.
Fig. 6 shows the 4th of the drive controlling method that relates in the LCD of the present invention
The sequential chart of embodiment.
In addition, for the control operation of above-mentioned first to the 3rd embodiment equivalence, simplify or omit its explanation.
In this embodiment with the display device of above-mentioned configuration (with reference to figure 1), the number of the sweep trace among the main display panel 10m is 160.The number of the sweep trace among the sub-display panel 10s is 160.The panel size ratio of main display panel 10m and sub-display panel 10s (number of sweep trace) accurately is 1: 1.
As shown in Figure 6, the drive controlling method that relates to the display device of present embodiment shows 1 vertical-scan period in 1 frame period.Scanning sequence T1, T3, T5 ..., from main sweep driver 30m successively with high level sweep signal S1m, S2m, S3m ... be applied to first, second, third of each sweep trace among the main display panel 10m ... OK.In addition, scanning sequence T2, T4, T6 ..., from sub-scanner driver 30s successively with high level sweep signal S1s, S2s, S3s ... be applied to first, second, third of each sweep trace among the sub-display panel 10s ... OK.
At this, during scanning sequence T1, T3, T5, by simultaneously from data definite 20 via each data line with shows signal voltage be applied to first, second, third the main display panel 10m ... each display element of row, predetermined luminance signal are write each row of becoming owner of display panel 10m successively.Scanning sequence T2, T4, T6 ... during this time, by simultaneously from data driver 20 via each data line with shows signal voltage be applied to first, second, third the sub-display panel 10s ... each display element of row, predetermined luminance signal are write each row of sub-display panel 10s successively.
Therefore, in 1 vertical-scan period (display cycle) in 1 frame period, the luminance signal of hope (shows signal voltage) is written among the main display panel 10m that has 160 sweep traces respectively and the sub-display panel 10s and as image information display.
In addition, as shown in Figure 6, in above-mentioned drive controlling operation, scanning sequence T1, T3, T5 ... since alternately the shows signal voltage of positive polarity and negative polarity is applied to the pixel of each the row display element among the main display panel 10m at county level on, alternately with low level and high level Your Majesty altogether signal voltage Vcomm be applied on the public electrode of main display panel 10m and carry out line (OK) inversion driving.In addition, scanning sequence T2, T4, T6 ... since alternately the shows signal voltage of positive polarity and negative polarity is applied to the pixel of each the row display element among the sub-display panel 10s at county level on, alternately with low level and high level Your Majesty altogether signal voltage Vcomm be applied on the public electrode of sub-display panel 10s and carry out line (OK) inversion driving.
In addition, after 1 vertical-scan period in 1 frame period finishes, the Your Majesty who is applied to about shows signal voltage and in above-mentioned 1 vertical-scan period on each the row display element (pixel capacitors and public electrode) among main display panel 10m and the sub-display panel 10s is total to signal voltage Vcomm and sub-common signal voltage Vcoms, and the vertical retrace line cycle (non-display cycle) is set.The cycle (for example, the cycle of the part of 3 stages among Fig. 6) of distributing to the duration of odd number part is identical with each of above-mentioned scanning sequence T1～T4320.In these vertical retrace line cycles (non-display cycle), carry out the odd number counter-rotating that the Your Majesty is total to signal voltage Vcomm and sub-common signal voltage Vcoms.For example, as shown in Figure 6, the Your Majesty is total to signal voltage Vcomm and sub-common signal voltage Vcoms reverses 3 times.Therefore, the reverse signal polarity of each signal voltage in next 1 frame period and in main display panel 10m and sub-display panel 10s, carry out the frame inversion driving.
In addition, as shown in Figure 6, when in sub-display panel 10s, carrying out turntable driving, the Your Majesty in main display panel 10m one side altogether the signal polarity of signal voltage Vcomm be set to sub-display panel 10s in the identical polarity of signal polarity of sub-common signal voltage Vcoms.In addition, when in main display panel 10m, carrying out turntable driving, the signal polarity of the sub-common signal voltage Vcoms in sub-display panel 10s one side be set to ensuing turntable driving in sub-display panel 10s in the identical polarity of signal polarity of sub-common signal voltage Vcoms.Therefore, in 1 vertical-scan period, altogether the number of the sweep trace among inversion driving frequency and the main display panel 10m of signal voltage Vcomm is identical to be applied to Your Majesty on the main display panel 10m.The number of the sweep trace among the inversion driving frequency that is applied to the sub-common signal voltage Vcoms on the sub-display panel 10s and the sub-display panel 10s is identical.
Particularly, this embodiment for example, as shown in Figure 6, main display panel 10m and sub-display panel 10s panel size ratio (number of sweep trace) be set to 1: 1 o'clock, in the identical cycle, carry out the inversion driving that the Your Majesty's common-battery be applied on the main display panel 10m is pressed Vcomm and is applied to the sub-common signal voltage Vcoms on the sub-display panel 10s.As a result, for example, utilize single common electrode drive device circuit to exchange Your Majesty's common electrode drive circuit 60m and sub-common driver circuit 60s is feasible.Therefore, can simplify circuit arrangement with the miniaturization display device.
In addition, even the panel size of main display panel and sub-display panel (number of sweep trace) is set to 1: 1 situation, because the inversion driving of common signal voltage is applied to main display panel and sub-display panel and only carries out at the number of scanning lines in main display panel or the sub-display panel, the inversion driving of common signal voltage can be applied to main display panel and sub-display panel.Therefore, can reduce the drive cycle (frequency of repetition) that relates to inversion driving and can realize reduction in power consumption.
In each the foregoing description, be defined as n although explained the panel size ratio of two display panels: 1 (n=1～4), the present invention is not limited to this.Particularly, the present invention is applied to sweep signal each the equipment of scanline groups that is arranged in two display panels in the corresponding sequential of panel size ratio (number of scanning lines) with each display panel.For example, even form correlative i at the panel size ratio of two display panels: j (i, j＞1,1 positive integer), this ratio is also feasible.
For example, when the panel size ratio according to two display panels of above-mentioned control method has 3: 2 concerning, the 3 row parts and the execution turntable driving that successively sweep signal are applied to a sweep trace in the display panel at continuous scanning sequence (3 scanning sequence) (for example, first of main display panel 10m arrive the third line; I is capable) afterwards, apply sweep signal successively and according to 2 row parts (for example, first and second of the sub-display panel 10s row of ensuing continuous sweep sequential (2 scanning sequence) with respect to the sweep trace in second display panel; J is capable) the execution turntable driving.In two display panels, alternately repeat this control operation of turntable driving.For each above-mentioned embodiment, the number of the sweep trace in the inversion driving frequency (repetition rate) that is applied to the common signal voltage on each display panel and each display panel is identical.When can reducing the drive cycle (frequency) that relates to inversion driving and realizing that power consumption reduces, can realize line inversion driving and frame inversion driving.
In addition, above-mentioned situation is that the panel size ratio of two display panels does not constitute more simple integer ratio.In this case, utilize 1 frame period bookkeeping sequential.Particularly, provide the pseudo-trace interval of adjusting sequential, so that the temporal summation of each signal polarity is identical for each the common signal voltage in each display panel, and use and the proportional approximate integer ratios i of panel size ratio: j.As mentioned above, then operate and come alternately according to number of scanning lines that multiple scanning drives between each display panel about the panel size ratio of two display panels.The above-mentioned drive controlling method of picture when can reducing the drive cycle (frequency) that relates to inversion driving and realizing that power consumption reduces, can realize line inversion driving and frame inversion driving.
In addition, for above-mentioned first to the 3rd embodiment, display device comprises the have relatively large panel size main display panel and the sub-display panel with relative less panel size (fewer purpose sweep trace) of (the more sweep trace of more number).In addition, drive the situation of the j line scanning driving of carrying out afterwards in the sub-display panel although explained the i line scanning in main display panel, may be the control of electronic equipment executable operations, so that the i line scanning that the j line scanning in sub-display panel is carried out in the main display panel after driving drives.
Finally, although the foregoing description has only illustrated the situation that comprises two display panels, the present invention is not limited to this and comprises 3 or more than the display device of 3 more big figure display panel.In addition, in this case, can be by according to number of scanning lines about the panel size ratio of each display panel, multiple scanning drives successively between each display panel, uses technological concept of the present invention.Once more, as above-mentioned drive controlling method, when can reducing the drive cycle (frequency) that relates to inversion driving and realizing that power consumption reduces, can realize line inversion driving and frame inversion driving.
Although the present invention has been described in conjunction with the preferred embodiments, any details of can't help to illustrate limits the present invention, but present invention resides in all embodiment in the claims scope.

Claims (40)

1, a kind of display device shows and the corresponding image of shows signal, comprises at least:
(10m 10s), comprises a plurality of sweep traces and a plurality of signal wire to a plurality of display panels, has near the display element each point of crossing that is positioned at each sweep trace and signal wire, and is positioned at the public electrode of same position with each display element; Display panel has the sweep trace of predetermined number respectively;
(30m 30s), is applied to sweep signal each of a plurality of sweep traces in each of a plurality of display panels successively, and is set to selection mode with the corresponding display element of suitable sweep trace successively for scanner driver part; And
Control section (50), control operation, be used for (30m by scanner driver portion, 30s) each predetermined scanning sequence select successively with each of a plurality of display panels in each a plurality of sweep traces of the corresponding a plurality of display panels of number of scanning lines purpose ratio, and a plurality of sequential in a frame period are in repeat even sequence in the display cycle between each display panels.
2, display device according to claim 1, wherein, the display cycle comprises that the number of scanning lines with each display panel all transfers the required vertical-scan period of selection mode to.
3, display device according to claim 1 comprises that also (60m 60s), applies the common signal voltage of the voltage level that is used for being provided with each public electrode for the common electrode drive device part of the public electrode of each display panel; And
Control section (50), with respect to each display panel, at by common electrode drive device (60m, 60s) part is applied to each the common signal voltage on the public electrode in each display panel, at least carry out the counter-rotating control of signal polarity, thereby, the inversion driving of each sweep trace and scanner driver part (30m, 30s) corresponding at the selection operation of each sweep trace.
4, display device according to claim 3, wherein, by scanner driver part (30m, 30s) the cycle of the sweep trace of any one display panel among a plurality of display panels of selection, control section (50) is controlled, when selecting the sweep trace of next relevant display panel, be applied to by common electrode drive device part (60m, 60s) signal polarity of the common signal voltage on the public electrode of another of the display panel of next time selecting is set to, the identical polarity of signal polarity with common signal voltage on the public electrode that is applied to relevant display panel.
5, display device according to claim 3, wherein, control section (50) is also carried out the counter-rotating control of the signal polarity of each common signal voltage in each frame period.
6, display device according to claim 5 wherein, during a frame period, comprises being used for the non-display cycle that sequential is adjusted, so that the signal polarity of each common signal voltage that reverses in each frame period.
7, display device according to claim 3, wherein, control section (50) is carried out the counter-rotating control of the signal polarity of each common signal voltage, so that in the display cycle, the application time cycle summation that is applied to each signal polarity of the common signal voltage on the public electrode in each display panel equates.
8, display device according to claim 7, wherein, the display cycle comprises pseudoperiod, is used for the adjustment of common signal voltage application time cycle, the application time summation of each signal polarity of management common signal voltage equates it in the relevant display cycle.
9, display device according to claim 3, wherein, the counter-rotating control that control section (50) is carried out, in display cycle in the frame period of the signal polarity of the common signal voltage on being applied to the public electrode of each display panel, reversal frequency is set to equate with the total number of the sweep trace of each these display panel.
10, display device according to claim 1, wherein, at least some in a plurality of signal wires in each display panel common with these display panels (10m, 10s) each is continuous; And
Display device also comprises: a signal driver part (20) will be applied to a plurality of signal wires with the corresponding shows signal voltage of shows signal.
11, display device according to claim 1, wherein, be provided with independently with each corresponding scanner driver parts of a plurality of display panels (30m, 30s).
12, display device according to claim 1, wherein, a plurality of display panels comprise first display panel (10m) and second display panel (10s), wherein the number ratio of sweep trace is defined as i: j (i, j are 1-position positive integer) at random; And
Control section (50) is controlled, (30m 30s) selects the operation of the capable sweep trace of i in first display panel and select the operation of the capable sweep trace of j in second display panel successively successively in the display cycle by scanner driver part so that alternately repeat.
13, display device according to claim 12, comprise that it is applied to the first common signal voltage and the second common signal voltage that voltage level is set in each public electrode at the first common electrode drive device part (60m) and the second common electrode drive device part (60s) of each public electrode of first display panel (10m) and second display panel (10s); And
Control section (50), in cycle of display element of scanning first display panel (10m), the signal polarity of the second common signal voltage the when signal polarity that is applied to the second common signal voltage on the public electrode of second display panel (10s) by the second common electrode drive device (60s) is set to the sweep trace of selecting second display panel (10s) next time; And in the cycle of the sweep trace of selecting second display panel (10s), the signal polarity that is applied to the first common signal voltage on first public electrode of first display panel (10m) by the first common electrode drive device (60m) is set to the polarity identical with the signal polarity of the second common signal voltage.
14, display device according to claim 1, wherein, a plurality of display panels comprise first display panel (10m) and second display panel (10s), wherein the number ratio of sweep trace is defined as approximate i: j (i, j are 1-position positive integer) at random; And
Control section (50) is controlled, (30m 30s) selects the operation of the capable sweep trace of i in first display panel (10m) and select the operation of the capable sweep trace of j in second display panel (10s) successively successively in the display cycle by scanner driver part so that alternately repeat.
15, display device according to claim 14, wherein, the display cycle comprises pseudoperiod, is used for the adjustment of common signal voltage application time cycle, the application time cycle summation of each signal polarity of management common signal voltage equates it in the relevant display cycle.
16, a kind of electronic equipment that comprises the display device of demonstration and the corresponding image of shows signal, this display device comprises at least:
(10m 10s), comprises a plurality of sweep traces and a plurality of signal wire, has near the display element each point of crossing that is positioned at each sweep trace and signal wire, and is positioned at the public electrode of same position with each display element for two display panels; Two display panels have the sweep trace of first and second numbers respectively;
(30m 30s), is applied to sweep signal each of a plurality of sweep traces in each of a plurality of display panels successively, and is set to selection mode with the corresponding display element of suitable sweep trace successively for scanner driver part;
Common electrode drive device part (60m, 60s), (10m applies the common signal voltage of the voltage level that is used for being provided with public electrode in 10s) at each display panel; And
Control section (50), control, so that in the display cycle of a plurality of sequential in a frame period, for each predetermined scanning sequence, by scanner driver part (30m, 30s) between each display panel alternately repetitive operation repeatedly select the corresponding a plurality of sweep traces of ratio successively with first and second numbers of sweep trace; And for by common electrode drive device (60m, 60s) part is applied to each display panel (10m, each common signal voltage on public electrode 10s), at least carry out the counter-rotating control of signal polarity, so that at each display panel (10m, corresponding each scan period of the selection operation of each sweep trace 10s) is by scanner driver part (30m, 30s) carry out each display panel (10m, inversion driving 10s).
17, electronic equipment according to claim 16 comprises cell phone.
18, electronic equipment according to claim 16, wherein, the display cycle comprises and transfers the required vertical-scan period of selection mode to the number of scanning lines of each display panel is whole.
19, electronic equipment according to claim 16, wherein, control section (50) is carried out control, by scanner driver part (30m, 30s) select two display panel (10m, 10s) in the cycle of the sweep trace of a direction display panel (10m), the signal polarity that is applied to the common signal voltage on the public electrode of another direction display panel (10s) by common electrode drive device part (60s) is set to, the identical polarity of signal polarity with common signal voltage on the public electrode that is applied to relevant another direction display panel (10s) when the sweep trace of the display panel of selecting another direction (10s) next time; And in scanner driver is partly selected cycle of sweep trace of another direction display panel (10s), the signal polarity that is applied to the common signal voltage on the public electrode of a direction display panel (10m) by common electrode drive device part (60m) be set to the public electrode that is applied to relevant another direction display panel (10s) on the identical polarity of signal polarity of common signal voltage.
20, electronic equipment according to claim 16, wherein, control section (50) is also carried out the counter-rotating control of signal polarity at each the common signal voltage in each frame period.
21, electronic equipment according to claim 20 wherein, comprises the non-display cycle that is used for the time adjustment during a frame period, so that the signal polarity of each the common signal voltage in each frame period of reversing.
22, electronic equipment according to claim 16, wherein, control section (50) is carried out the counter-rotating control of signal polarity at each common signal voltage, equates so that be applied to the application time cycle summation of each signal polarity of the common signal voltage on the public electrode in each display panel in the display cycle.
23, electronic equipment according to claim 22, wherein, the display cycle comprises pseudoperiod, is used for the adjustment of common signal voltage application time cycle, the application time cycle summation of each signal polarity of management common signal voltage equates it in the relevant display cycle.
24, electronic equipment according to claim 16, wherein, for the counter-rotating control that control section (50) is carried out, it is identical with the total number of the sweep trace of each these display panel that the reversal frequency that is applied to the display cycle in frame period of signal polarity of the common signal voltage on the public electrode of each display panel is set to.
25, electronic equipment according to claim 16, some in a plurality of signal wires in each display panel link to each other with each of these display panels jointly at least; And
Display device also comprises: a signal driver part (20) will be applied to a plurality of signal wires with the corresponding shows signal voltage of shows signal.
26, electronic equipment according to claim 16, wherein, be provided with independently with each corresponding scanner driver parts of a plurality of display panels (30m, 30s).
27, electronic equipment according to claim 16, wherein, two display panels comprise first display panel (10m) and second display panel (10s), wherein the number ratio of first and second sweep traces is defined as i: j (i, j are 1-position positive integer) at random; And
Control section (50) is controlled, (30m 30s) selects the operation of the capable sweep trace of i in first display panel and select the operation of the capable sweep trace of j in second display panel successively successively in the display cycle by scanner driver part so that alternately repeat.
28, electronic equipment according to claim 16, comprise that it is applied to the first common signal voltage and the second common signal voltage that voltage level is set in each public electrode at the first common electrode drive device part (60m) and the second common electrode drive device part (60s) of each public electrode of first display panel (10m) and second display panel (10s); And
Control section (50), in cycle of display element of scanning first display panel (10m), the identical polarity of signal polarity of the second common signal voltage the when signal polarity that is applied to the second common signal voltage on the public electrode of second display panel (10s) by the second common electrode drive device (60s) is set to the sweep trace of selecting second display panel (10s) next time; And in the cycle of the sweep trace of selecting second display panel (10s), the signal polarity that is applied to the first common signal voltage on first public electrode of first display panel (10m) by the first common electrode drive device (60m) is set to the polarity identical with the signal polarity of the second common signal voltage.
29, electronic equipment according to claim 16, wherein, two display panels comprise first display panel (10m) and second display panel (10s), wherein the number ratio of sweep trace is defined as approximate i: j (i, j are 1-position positive integer) at random; And
Control section (50) is controlled, (30m 30s) selects the operation of the capable sweep trace of i in first display panel (10m) and select the operation of the capable sweep trace of j in second display panel (10s) successively successively in the display cycle by scanner driver part so that alternately repeat.
30, electronic equipment according to claim 29, wherein, the display cycle comprises pseudoperiod, is used for the adjustment of common signal voltage application time cycle, management equates it in the application time cycle of each signal polarity of common signal voltage summation in the relevant display cycle.
31, a kind ofly comprise a plurality of display panel (10m, the drive controlling method of display device 10s), display panel comprises: a plurality of sweep traces and a plurality of signal wire, have near the display element each point of crossing that is positioned at each sweep trace and signal wire, and be positioned at the public electrode of same position with each display element;
Display panel has the sweep trace of predetermined number respectively;
Process, repeat control operation, and each of a plurality of display panels in corresponding each predetermined scanning sequence place of number ratio of sweep trace scan a plurality of sweep traces of each display panel and a plurality of sequential in a frame period successively and be in and between each display panel, repeat even sequence in the display cycle; And
Process, for be provided with corresponding each display panel with the sweep trace control operation (10m, the voltage level of public electrode 10s) is with respect to each display panel, at least carry out the signal polarity counter-rotating of public voltage signal, so that carried out inversion driving for each sweep trace.
32, drive controlling method according to claim 31, wherein, the display cycle comprises that the number of scanning lines with a plurality of display panels all transfers the required vertical-scan period of selection mode to.
33, drive controlling method according to claim 32, wherein, the process of the signal polarity of counter-rotating common signal voltage also is included in the process of the signal polarity of each common signal voltage of counter-rotating in each frame period.
34, drive controlling method according to claim 31, wherein, the process of the signal polarity of counter-rotating common signal voltage is set, thereby (10m, the application time cycle summation of each signal polarity of the common signal voltage on public electrode 10s) equated in the display cycle to be applied to each display panel.
35, drive controlling method according to claim 31, wherein, the process of the signal polarity of counter-rotating common signal voltage is being selected a plurality of display panel (10m, in the cycle of the sweep trace of any one display panel 10s), the signal polarity that is applied to next time the common signal voltage on the public electrode of another display panel of selecting be set to the public electrode that when selecting the sweep trace of the next display panel of being correlated with, is applied to the display panel of being correlated with on the identical polarity of signal polarity of common signal voltage.
36, drive controlling method according to claim 31, wherein, (it is identical with the number of the sweep trace of each these display panel that 10m, the reversal frequency in the display cycle in a frame period of the signal polarity of the common signal voltage on public electrode 10s) are set to be applied to each display panel.
37, drive controlling method according to claim 31, wherein, a plurality of display panels comprise first display panel (10m) and second display panel (10s), wherein the number ratio of sweep trace is defined as i: j (i, j are 1-position positive integer) at random; And
The process of control operation that repeats to scan successively the sweep trace of each display panel comprises control procedure: alternately repeat to select successively the operation of the capable sweep trace of i in first display panel (10m) and select the operation of the capable sweep trace of j in second display panel (10s) successively in the display cycle.
38, according to the described drive controlling method of claim 37, wherein, the process of the signal polarity of counter-rotating common signal voltage comprises process: in the cycle of the display element of scanning first display panel (10m), and the identical polarity of signal polarity of the second common signal voltage the when signal polarity that is applied to the second common signal voltage on the public electrode of second display panel (10s) by the second common electrode drive device (60s) is set to the sweep trace of selecting second display panel (10s) next time; And in the cycle of the sweep trace of selecting second display panel (10s), the signal polarity that is applied to the first common signal voltage on first public electrode of first display panel (10m) by the first common electrode drive device (60m) is set to the polarity identical with the signal polarity of the second common signal voltage.
39, drive controlling method according to claim 31, wherein, a plurality of display panels comprise first display panel (10m) and second display panel (10s), wherein the number ratio of sweep trace is defined as approximate i: j (i, j are 1-position positive integer) at random; And
The process of control operation that repeats to scan successively the sweep trace of each display panel comprises repetitive process: alternately repeat to select successively the operation of the capable sweep trace of i in first display panel (10m) and select the operation of the capable sweep trace of j in second display panel (10s) successively in the display cycle.
40, according to the described drive controlling method of claim 39, wherein, repeat to scan successively each display panel (10m, the process of the control operation of sweep trace 10s) comprises process: in the relevant display cycle be set pseudoperiod, and adjust the common signal voltage application time cycle, so that the application time cycle summation of each signal polarity of management common signal voltage equates it in the display cycle.
CN2005800005324A 2004-05-12 2005-05-11 Driving method of display device having main display and sub display Expired - Fee Related CN1806274B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004142201A JP4501525B2 (en) 2004-05-12 2004-05-12 Display device and drive control method thereof
JP142201/2004 2004-05-12
PCT/JP2005/009019 WO2005109395A1 (en) 2004-05-12 2005-05-11 Driving method of deplay device having main display and sub display

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN2009101302737A Division CN101533630B (en) 2004-05-12 2005-05-11 Driving method of deplay device having main display and sub display

Publications (2)

Publication Number Publication Date
CN1806274A true CN1806274A (en) 2006-07-19
CN1806274B CN1806274B (en) 2010-08-18

Family

ID=34968003

Family Applications (2)

Application Number Title Priority Date Filing Date
CN2009101302737A Expired - Fee Related CN101533630B (en) 2004-05-12 2005-05-11 Driving method of deplay device having main display and sub display
CN2005800005324A Expired - Fee Related CN1806274B (en) 2004-05-12 2005-05-11 Driving method of display device having main display and sub display

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN2009101302737A Expired - Fee Related CN101533630B (en) 2004-05-12 2005-05-11 Driving method of deplay device having main display and sub display

Country Status (8)

Country Link
US (1) US7671830B2 (en)
EP (1) EP1634271A1 (en)
JP (1) JP4501525B2 (en)
KR (1) KR100792087B1 (en)
CN (2) CN101533630B (en)
HK (1) HK1093255A1 (en)
TW (1) TWI307487B (en)
WO (1) WO2005109395A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102867494A (en) * 2011-10-14 2013-01-09 矽创电子股份有限公司 Driving method and driving circuit of liquid crystal display device
CN108292491A (en) * 2015-12-22 2018-07-17 卡西欧计算机株式会社 Display device and its control method
CN109935216A (en) * 2017-12-18 2019-06-25 夏普株式会社 Display control unit and liquid crystal display device with the display control unit

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3541891B2 (en) * 2002-03-15 2004-07-14 日本電気株式会社 Connector with dustproof mechanism
JP4501525B2 (en) * 2004-05-12 2010-07-14 カシオ計算機株式会社 Display device and drive control method thereof
DE602006003252D1 (en) 2005-04-27 2008-12-04 Lg Display Co Ltd Double-screen device and method for its activation
JP4561557B2 (en) * 2005-09-22 2010-10-13 株式会社デンソー Liquid crystal display device and vehicle periphery monitoring device
KR100635511B1 (en) * 2005-09-30 2006-10-17 삼성에스디아이 주식회사 Organic electroluminescent display device
KR101358181B1 (en) * 2005-12-02 2014-02-07 가부시키가이샤 한도오따이 에네루기 켄큐쇼 Display module and electronic device using the same
US20070152955A1 (en) * 2005-12-29 2007-07-05 Nokia Corporation Reduced power consumption display panel
US7439679B2 (en) * 2006-03-16 2008-10-21 Motorola, Inc. Method and apparatus for illuminating light sources within an electronic device
WO2007142190A1 (en) * 2006-06-09 2007-12-13 Sharp Kabushiki Kaisha Display drive circuit and display
US20080036720A1 (en) * 2006-08-09 2008-02-14 Foo Ken K System and method for driving a liquid crystal display to reduce audible noise levels
KR20080037754A (en) * 2006-10-27 2008-05-02 삼성전자주식회사 Liquid crystal display device and driving mathod thereof
KR20090054836A (en) * 2007-11-27 2009-06-01 삼성전자주식회사 The apparatus for displaying image and the method thereof
JP4737562B2 (en) * 2008-06-19 2011-08-03 ソニー株式会社 Information processing apparatus and method, and program
KR101751352B1 (en) * 2010-10-29 2017-06-28 삼성디스플레이 주식회사 Method of driving display panel and display apparatus for performing the method
KR20140052454A (en) * 2012-10-24 2014-05-07 삼성디스플레이 주식회사 Scan driver and display device comprising the same
WO2015173954A1 (en) * 2014-05-16 2015-11-19 富士通株式会社 Drawing device, drawing method, and computer program for drawing
KR102398677B1 (en) * 2015-04-06 2022-05-16 삼성디스플레이 주식회사 Display device
JP6830765B2 (en) * 2015-06-08 2021-02-17 株式会社半導体エネルギー研究所 Semiconductor device
KR102412456B1 (en) * 2015-08-26 2022-06-27 엘지디스플레이 주식회사 Display Device
KR102541709B1 (en) * 2016-04-04 2023-06-13 삼성디스플레이 주식회사 Method of driving display panel and display apparatus for performing the method
US10354569B2 (en) * 2017-02-08 2019-07-16 Microsoft Technology Licensing, Llc Multi-display system
CN112489602B (en) 2019-09-11 2022-06-21 矽创电子股份有限公司 Driving circuit of display panel, driving method of display panel and display module

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993019452A1 (en) * 1992-03-20 1993-09-30 Vlsi Technology, Inc. Vga controller using address translation to drive a dual scan lcd panel and method therefor
TW277129B (en) * 1993-12-24 1996-06-01 Sharp Kk
JP3476241B2 (en) * 1994-02-25 2003-12-10 株式会社半導体エネルギー研究所 Display method of active matrix type display device
JPH09130708A (en) * 1995-10-31 1997-05-16 Victor Co Of Japan Ltd Liquid crystal image display device
US6084562A (en) * 1997-04-02 2000-07-04 Kabushiki Kaisha Toshiba Flat-panel display device and display method
JP3879484B2 (en) 2001-10-30 2007-02-14 株式会社日立製作所 Liquid crystal display
JP2003323164A (en) * 2002-05-08 2003-11-14 Hitachi Displays Ltd Liquid crystal display device and its driving method
JP3854905B2 (en) * 2002-07-30 2006-12-06 株式会社 日立ディスプレイズ Liquid crystal display
JP4297660B2 (en) * 2002-08-09 2009-07-15 三洋電機株式会社 Display device
TWI266106B (en) * 2002-08-09 2006-11-11 Sanyo Electric Co Display device with a plurality of display panels
JP4297662B2 (en) * 2002-08-09 2009-07-15 三洋電機株式会社 Display device
JP4794801B2 (en) * 2002-10-03 2011-10-19 ルネサスエレクトロニクス株式会社 Display device for portable electronic device
JP4256665B2 (en) * 2002-11-15 2009-04-22 株式会社 日立ディスプレイズ Image display device
JP4145637B2 (en) * 2002-11-25 2008-09-03 シャープ株式会社 Active matrix substrate and display device
KR100957574B1 (en) * 2003-09-17 2010-05-11 삼성전자주식회사 Display apparatus
JP4501525B2 (en) * 2004-05-12 2010-07-14 カシオ計算機株式会社 Display device and drive control method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102867494A (en) * 2011-10-14 2013-01-09 矽创电子股份有限公司 Driving method and driving circuit of liquid crystal display device
CN102867494B (en) * 2011-10-14 2015-06-17 矽创电子股份有限公司 Driving method and driving circuit of liquid crystal display device
CN108292491A (en) * 2015-12-22 2018-07-17 卡西欧计算机株式会社 Display device and its control method
CN109935216A (en) * 2017-12-18 2019-06-25 夏普株式会社 Display control unit and liquid crystal display device with the display control unit
US10896652B2 (en) 2017-12-18 2021-01-19 Sharp Kabushiki Kaisha Display control device and liquid crystal display device including display control device

Also Published As

Publication number Publication date
KR20060039870A (en) 2006-05-09
EP1634271A1 (en) 2006-03-15
JP4501525B2 (en) 2010-07-14
TWI307487B (en) 2009-03-11
WO2005109395A1 (en) 2005-11-17
KR100792087B1 (en) 2008-01-04
CN1806274B (en) 2010-08-18
US20050253799A1 (en) 2005-11-17
CN101533630A (en) 2009-09-16
JP2005326461A (en) 2005-11-24
HK1093255A1 (en) 2007-02-23
TW200608331A (en) 2006-03-01
US7671830B2 (en) 2010-03-02
CN101533630B (en) 2012-03-21

Similar Documents

Publication Publication Date Title
CN1806274A (en) Driving method of deplay device having main display and sub display
CN1261806C (en) Liquid-crystal display device and driving method thereof
CN1159692C (en) Digital driver circuit for electro-optical device and electro-optical device digital driver circuit
CN1272654C (en) LCD equipment having improved precharge circuit and method of driving same
CN1282025C (en) Field sequence driving liquid crystal display device capable of increasing bright and suppressing non-eveness and its driving method
CN1519805A (en) Displaying driver, displaying device and displaying drive method
CN1523567A (en) Display drive control device and electric device including display device
CN1532601A (en) Liquid crystal display device and its driving method
CN100336097C (en) Display device
CN1521713A (en) Display drive control device and electric device including display device
CN1801311A (en) Method of driving display device and display device for performing the same
CN101075417A (en) Displaying apparatus using data line driving circuit and data line driving method
CN1448901A (en) Image display method and image display device
CN1815543A (en) Liquid crystal display and driving apparatus thereof
CN1251932A (en) Display unit
CN1641728A (en) Display drive device and display apparatus having same
CN1697011A (en) Controller driver and display apparatus
CN1601596A (en) Scan driver, display device having the same, and method of driving display device
CN1530909A (en) Displaying devices
CN1705006A (en) Liquid crystal display device and driving method thereof
CN1737652A (en) Liquid Crystal Display And Method For Driving
CN1719502A (en) Pixel circuit, method of driving the same, electro-optical device, and electronic apparatus
CN1534565A (en) Holding type image display with two different alternate pixels and driving method
CN1940645A (en) Apparatus and method for transmission data, apparatus and method for driving image display device using the same
CN1648980A (en) Driving circuit for a display device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1093255

Country of ref document: HK

C14 Grant of patent or utility model
GR01 Patent grant
REG Reference to a national code

Ref country code: HK

Ref legal event code: GR

Ref document number: 1093255

Country of ref document: HK

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100818

Termination date: 20160511

CF01 Termination of patent right due to non-payment of annual fee